Cheers Fenlander. I did put a tach on it but it failed after the second outing
, won't have time to run it again before we go to Scotland unfortunately.
Dumb question alert, is the pitch measurement the depth of the cup on the blade i.e. distance from leading edge to trailing edge?
I will go and inspect the current prop tomorrow for markings. On the Frib 330 it tops out as 19-20kn solo which is pretty much the most anyone seems to get out of one of these so I am guessing the prop ratio isn't far off. It can take a bit of effort to get on the plane 3 up but it does get their and holds it with no problem.
If anything my problem is how "bow up" it goes when getting on the plane but I think that is more about weight distribution